Dropbox has 4 million business customers. For them it now has a new Dropbox for business

Dropbox, the San Francisco-based online storage and sync service today announced the business version of its service. The company, so far was focused on getting attention of individual users and small work groups. “We have been serving business users for a while,” co-founder and CEO Drew Houston said at an event.

Houston said that Dropbox now has million businesses and 97 percent of fortune 500 companies are using their offering, double from November 2012, when it had 100 million accounts. At present, the company has 200 million accounts. In addition, he pointed out that companies such as Kayak and National Geographic are its customers. Houston, claimed that a billion files are saved online.

“A year ago we started to work on new Dropbox for business,” said Houston. “A lot more has been remade under the hood at Dropbox.” In a blog post, Houston and his co-founder Arash Ferdowsi wrote:

We thought about this from scratch and designed a solution we’re excited to share: connecting your personal Dropbox to your Dropbox for Business account. This’ll give you a personal Dropbox and a work Dropbox on all of your devices so you’ll never have to switch between them.

But this is about more than having two places for all your stuff. Take the mobile app — once you connect your Dropboxes, you’ll be able to get to both Dropbox folders from the same Files tab. Dropbox is also smart about making sure your stuff goes where it’s supposed to. For example, photos you add with Camera Upload will instantly show up in the Photos tab, but they’ll stay for your eyes only.

If the real service is as good as the demo (and I have no doubt that it wouldn’t be as good), Dropbox for Business will be something we are very likely to rollout at our company, considering we all use Dropbox in some capacity anyway.